Hi everyone, my 2003 mustang GT is having electrical problems. My brake lights and signals are not working but my headlights are working. My power windows and horn are working but my power locks are not working. Also my radio has no power and my my wipers are not working. I checked all the fuses and they are working and my battery is good. I think I have a lose connection. Also the previous owner had satellite radio installed and he took it out before he sold it to me. What should I do? Please Help!!!